имя существительное [электротехника] аккумуляторная батарея; аккумулятор
электроника аккумуляторная батарея
аккумуляторная батарея; аккумулятор
noun a cell or connected group of cells that converts chemical energy into electrical energy by reversible chemical reactions and that may be recharged by passing a current through it in the direction opposite to that of its discharge — called also storage cell